Law enforcement says an Argentine player struck a Spanish rival during the 2026 World Cup final.
A brief altercation followed, then turned into a larger brawl once the final whistle blew.
Officers arrested several spectators in New Jersey when fans came into conflict in the streets.
FIFA opened a probe into the post‑match unrest.
The Argentina skipper published his side’s take after being sent off.
Critics are denouncing the unruly behaviour in the stadium and on the streets.